[Botany • 2018] Begonia austrovietnamica (sect. Alicida, Begoniaceae) • A Handsome New Species from South Vietnam

Begonia austrovietnamica C.-I Peng, C.W. Lin, D.D. Nguyen & N.D. Truong

in Peng, Truong, Nguyen & Lin, 2018.

DOI: 10.11646/phytotaxa.381.1.12 

Abstract

Begonia austrovietnamica C.-I Peng, C.W. Lin, D.D. Nguyen & N.D. Truong, a new species from Binh Thuan provice, southern Vietnam, is hereby described and illustrated. B. austrovietnamica resembles B. alicida C.B. Clarke in being a tuberous species with a dormant period, having 4-tepaled staminate flowers and 3-locular ovaries. However, the new species differs from B. alicida in being stemless with basal leaves (vs. erect stem),  strongly asymmetrical (vs. slightly asymmetrical) lamina, inflorescence axillary (vs. terminal), pistillate flowers 6-tepaled (vs. 5-tepaled), ovary narrowly trigonous-ellipsoid (vs. trigonous-spheroid).

Keywords: Begonia alicida, Begonia bataiensis, taxonomy, Eudicots

  

Ching-I Peng, Nguyen-Dong Truong, Danh Duc Nguyen and  Che-Wei Lin. 2018. Begonia austrovietnamica (sect. Alicida, Begoniaceae), A Handsome New Species from South Vietnam. Phytotaxa. 381(1); 95–99. DOI: 10.11646/phytotaxa.381.1.12

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[Botany • 2018] Viola pachysoma (Violaceae) • A New Name for A Rosulate Species Endemic to the Andes of Argentinian Patagonia

Viola pachysoma

in Watson, Flores, Sheader & Sheader, 2018. 

DOI:  10.11646/phytotaxa.382.1.6 

Abstract

The species herein, Viola pachysoma, has a long history of confused identity. When recognised as a distinct taxonomic entity it was published as Viola copahuensis. It also acquired a later replacement name, Viola caviahuensis. Each of these in turn has been formally declared nom. illeg. et nom superfl. Consequently, a third epithet for the taxon, V. pachysoma, is coined and presented here. The original protologue lacked a formal diagnosis, so we have added a supplementary version. We also chronicle the species since known to science, including its status as one of the parents of the first recorded hybrid in its section. A discussion and two multi-character tables serve to compare and separate species comprising the poorly understood geographical alliance which incorporates V. pachysoma. 

Keywords: ICN Code, misidentification, natural hybrid, nomen illegitimum, nomen superfluum, section Andinium, sempervivoid, volcanic, Eudicots

John M. Watson, Ana R. Flores, Martin Sheader and Anna-Liisa Sheader. 2018. Viola pachysoma (Violaceae), A New Name for A Rosulate Species Endemic to the Andes of Argentinian Patagonia. Phytotaxa. 382(1); 113–124.  DOI:  10.11646/phytotaxa.382.1.6

[Botany • 2019] Pre‐Pleistocene Origin of Phylogeographical Breaks in African Rain Forest Trees: New Insights from Greenwayodendron (Annonaceae) Phylogenomics

Greenwayodendron sp.

in Migliore, Kaymak, Mariac, Couvreur, et al., 2019.

 DOI: 10.1111/jbi.13476    twitter.com/TLPCouvreur

twitter.com/JBiogeography  

Abstract

Aim: 

Palaeoecological records indicate that Pleistocene glaciations affected the African rain forest, probably causing its fragmentation, which could explain phylogeographical breaks documented in many tree species. This refuge hypothesis was further tested through species distribution models, hindcasting persistence during the Last Glacial Maximum. However, previous studies failed to estimate with sufficient precision the divergence time between phylogeographical entities to confirm their Pleistocene origin. Developing genomic tools on a representative tree of mature rain forests, we test if parapatric genetic clusters documented in widespread tree species can be interpreted as the legacy of past population fragmentation during the last glacial period(s).

Location: Tropical Africa, Guineo‐Congolian forests.

Taxon: Greenwayodendron (Annonaceae).

Methods:

To further test the Pleistocene refuge hypothesis by molecular dating, we sequenced the plastome of 145 individuals of the shade‐tolerant rain forest tree Greenwayodendron suaveolens and congeneric species, and genotyped the same samples using nuclear microsatellites to identify genetic clusters.

Results: 

Five plastid phylogroups of G. suaveolens occur in parapatry throughout Central Africa, following a spatial pattern generally congruent with genetic clusters. Four of them diverged 3.5–4.5 Ma, whereas the fifth one, located in the Cameroon volcanic line (CVL), diverged 8.3 Ma, in the range of divergence times between Greenwayodendron species, highlighting the key role of the CVL in hosting ancient lineages. Within phylogroups, most nodes were dated from 0.9 to 3.2 Myr and a correlation between haplotype divergence and spatial distance was still perceptible, indicating a slow population dynamic.

Main conclusions: 

The phylogeographical structures of Central African trees probably established during the Pliocene or early Pleistocene, and while they might have been reinforced during subsequent glacial–interglacial cycles, interglacial phases did not lead to genetic homogenization. Therefore, interpreting phylogeographical patterns of African trees must account for a much deeper past than previously assumed, and cannot be limited to the last glacial period.

Keywords: African rain forests, evolutionary history, Greenwayodendron, High‐throughput sequencing, molecular dating, nuclear microsatellites, phylogeography, plastome captures, Pleistocene glaciations

CONCLUSIONS: 

The well‐resolved plastome phylogeny of Greenwayodendron species challenges the accepted view of Central African forest historical dynamics by showing that phylogeographical patterns of mature forest trees can have a very ancient origin, pre‐dating the Pleistocene. Our results call for a reassessment of the reference time‐scale traditionally used to interpret phylogeographical patterns in African rain forest trees, earlier than the last glacial cycle. The long generation time of shade‐tolerant tree species, their limited dispersal capacity and their incapacity to colonize open habitats probably explain their slow spatial dynamics, which in turn induces genetic signatures of very ancient historical or biogeographical events.

    

Jérémy Migliore, Esra Kaymak, Cédric Mariac, Thomas L. P. Couvreur, Brandet‐Junior Lissambou, Rosalía Piñeiro and Olivier J. Hardy. 2019. Pre‐Pleistocene Origin of Phylogeographical Breaks in African Rain Forest Trees: New Insights from Greenwayodendron (Annonaceae) Phylogenomics. Journal of Biogeography.  DOI: 10.1111/jbi.13476  

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[Herpetology • 2018] Pseudopaludicola matuta • A New Species of Pseudopaludicola (Anura, Leptodactylidae, Leiuperinae) from the State of Minas Gerais, Brazil

Pseudopaludicola matuta 

Andrade, Haga, Lyra, Carvalho, Haddad, Giaretta & Toledo, 2018

DOI: 10.5852/ejt.2018.480

photo: Felipe Andrade facebook.com/FelipeAndrade9083

Abstract

The genus of Neotropical frogs Pseudopaludicola Miranda-Ribeiro, 1926 includes 23 species, which occur throughout South America. Herein we describe a new species of Pseudopaludicola from the central region of the state of Minas Gerais (southeastern Brazil). This new species is distinguished by the adult morphology, the advertisement call, and molecular data. It is diagnosed mainly by its small size, terminal phalanges knobbed (lack of any expansion of the digital tips), proportionally short hind limbs, and its advertisement call composed of series of two-pulsed notes, emitted at a high repetition rate. In addition, we report the occurrence of the new species in the southern foothills of the Serra do Cipó National Park, at elevations lower than 800 m above sea level (a.s.l). The sister species of this new taxon is P. mineira Lobo, 1994, which occurs in rupestrian grasslands above 1200 m a.s.l. at the Serra do Cipó National Park and in Serra do Cabral, both in the state of Minas Gerais, Brazil. We also redescribe the advertisement call of P. mineira based on recordings from topotypical males and compare it to calls of related species.

Keywords: advertisement call; integrative taxonomy; Pseudopaludicola matuta sp. nov.; Pseudopaludicola mineira; Serra do Cipó National Park

Fig. 3. Holotype and five paratypes of Pseudopaludicola matuta sp. nov. in life.
A. Specimen ZUEC 24302 (holotype, adult ♂, call voucher; SVL = 13.0 mm). B. Specimen ZUEC 24304 (adult ♂, call and GenBank voucher; SVL = 13.3 mm). C. Specimen ZUEC 24303 (adult ♂, call and GenBank voucher; SVL = 12.8 mm). D. Specimen ZUEC 24305 (adult ♂ and call voucher; SVL = 13.4 mm). E. Specimen ZUEC 24308 (adult ♂, call and GenBank voucher; SVL = 13.5 mm). F. Specimen ZUEC 24307 (adult ♀ and GenBank voucher; SVL = 15.2 mm).

Class Amphibia Linnaeus, 1758 

Order Anura Fischer von Waldheim, 1813 

Family Leptodactylidae Werner, 1896 (1838) 

Subfamily Leiuperinae Bonaparte, 1850 

Genus Pseudopaludicola Miranda-Ribeiro, 1926 

Pseudopaludicola matuta sp. nov. 

Pseudopaludicola sp. – Carvalho (2012): 52, Natural History Section.

  Pseudopaludicola mineira from Pampulha, Belo Horizonte, Minas Gerais – Andrade et al. 2018: 87, Discussion Section. 

Diagnosis: Pseudopaludicola matuta sp. nov. is assigned to the genus Pseudopaludicola by having a hypertrophied antebrachial tubercle (see Lynch 1989, Lobo 1995). The new species is characterized by the following combination of characters: (1) small size (SVL 12.8–14.2 mm in adult males); (2) absence of both, enlarged palpebral tubercles and an enlarged conical tubercle on heel; (3) relatively short hind limbs (tibiotarsal articulation only reaching the posterior margin of the eye); and (4) advertisement call composed of regular series of stereotyped two-pulsed notes, with notes having a short duration and emitted at a higher rate (notes per minute).

Etymology: The feminine noun matuta in Brazilian Portuguese means rustic, provincial, related to those who live in the countryside.

     

Felipe Silva de Andrade, Isabelle Aquemi Haga, Mariana Lúcio Lyra, Thiago Ribeiro de Carvalho, Célio Fernando Baptista Haddad, Ariovaldo Antonio Giaretta and Luís Felipe Toledo. 2018. A New Species of Pseudopaludicola (Anura, Leptodactylidae, Leiuperinae) from the State of Minas Gerais, Brazil.  European Journal of Taxonomy.  480; 1–25. DOI: 10.5852/ejt.2018.480

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[Botany • 2018] Rachunia cymbiformis • A New Genus and Species of Gesneriaceae from Thailand

 Rachunia cymbiformis D.J.Middleton.

Rachunia D.J.Middleton & C.Puglisi gen. nov.

in Middleton, Khew, Poopath, et al., 2018.  

DOI: 10.1111/njb.01992 

Abstract 

Rachunia, a new genus of Gesneriaceae from Thailand, is described with a single species, Rachunia cymbiformis. Its relationship to the rest of subtribe Didymocarpinae is investigated through a phylogenetic study based on Bayesian Inference and Parsimony analyses of nuclear ITS and plastid trnL‐trnF (intron‐spacer) sequences. Morphologically, Rachunia differs from the related genera Codonoboea in the large boat‐shaped bracts and orthocarpic vs plagiocarpic fruit; from Microchirita in the bracts, wiry vs fleshy stem, the campanulate vs tubular corolla and the clavate vs chiritoid stigma, and from Henckelia in the clavate vs chiritoid stigma, large boat‐shaped bracts in the inflorescence, free and imbricate sepals, short and campanulate corolla, clavate stigma, and relatively robust orthocarpic fruit.

Keywords: phylogeny, Henckelia, Didymocarpinae

Rachunia cymbiformis D.J.Middleton. close-up of bracts and flower.

Photo by Manop Poopath. 

Rachunia D.J.Middleton & C.Puglisi gen. nov. 

Type species: Rachunia cymbiformis D.J.Middleton. 

Etymology: The genus is named in honour of the Thai botanist Dr Rachun Pooma of the Forest Herbarium Bangkok (BKF) to recognise his great contribution to our understanding of plant diversity in Thailand and the wider region.

Rachunia cymbiformis D.J.Middleton sp. nov. 

Etymology: The specific epithet ‘cymbiformis’ refers to the boat-shaped bracts in the inflorescence.

D. J. Middleton, G. S. Khew, M. Poopath, M. Möller and C. Puglisi. 2018. Rachunia cymbiformis, A New Genus and Species of Gesneriaceae from Thailand. Nordic Journal of Botany. 36(11); e01992. DOI: 10.1111/njb.01992

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[Herpetology • 2018] Pristimantis gralarias • A New (Singleton) Rainfrog of the Pristimantis myersi Group (Amphibia: Craugastoridae) from the northern Andes of Ecuador

Pristimantis gralarias 

Guayasamin, Arteaga & Hutter, 2018

DOI: 10.11646/zootaxa.4527.3.2

  twitter.com/JMGuayasamin

Abstract

Reserva Las Gralarias is one of the best-studied localities of the Ecuadorian Andes in terms of its batrachofauna. However, as expected in any community, some species are rare and, therefore, their discovery and description are problematic. Herein, based on a single specimen, we describe Pristimantis gralarias sp nov. Even though we are aware of the problems associated to singleton species (i.e., unknown intraspecific variation, limited ecological information), our efforts to finding additional specimens have been unsuccessful. Thus, given the importance of species descriptions in threatened areas (e.g. Andes), and that the new taxon is supported by both morphological and genetic data, we consider that the description is justified. Pristimantis gralarias sp nov is easily distinguished from all other members of the P. myersi group by its long and slender fingers and toes, with discs that are not expanded laterally (or are only slightly expanded). Furthermore, the new species is characterized by having a black venter with minute white spots and a red groin. A molecular phylogeny corroborates the placement of the new species in the P. myersi group and its distinctiveness in relation to other species. Finally, we discuss on the limitations and advantages associated to species descriptions based on one or few specimens.

Keywords: Amphibia, cloud forest, Taxonomy, Terrarana

FIGURE 1. Pristimantis gralarias sp. nov. in life, holotype, MZUTI 1466.

Pristimantis gralarias sp nov. 

Etymology: The specific epithet gralarias is a noun in apposition and refers to the type locality of the new species, Reserva Las Gralarias (reservalasgralarias.com). We take pleasure in dedicating this species to the reserve and the team of people, led by Dr. Jane Lyons, for efforts on the conservation and research of Ecuadorian cloud forests. As the English common name for this species, we suggest Gralarias Rainfrog. As the common name in Spanish, we suggest Cutín de Las Gralarias. 

Juan M. Guayasamin, Alejandro Arteaga and Carl R. Hutter. 2018. A New (Singleton) Rainfrog of the Pristimantis myersi Group (Amphibia: Craugastoridae) from the northern Andes of Ecuador. Zootaxa. 4527(3); 323–334.  DOI: 10.11646/zootaxa.4527.3.2

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[Arachnida • 2018] Ovia macritchie • A New Ovia Species (Araneae, Lycosidae) from Singapore, with the Transfer of Pardosa alboannulata Yin et al., 1997

Ovia macritchie

Lu, Koh, Zhang & Li, 2018

   DOI: 10.11646/zootaxa.4527.3.12

 photo:  Joseph Koh   facebook.com/JosephKoh7161 

Abstract

A new species of wolf spiders, Ovia macritchie sp. nov., is discovered in Singapore. It is closely related to O. procurva (Yu & Song, 1988), hitherto the only species of Ovia Sankaran, Malamel & Sebastian, 2017. O. macritchie also resembles Pardosa alboannulata Yin et al., 1997 from China, which is herein transferred to Ovia. All of them share a uniquely hooked terminal apophysis on the male pedipalp. Colour photos, line drawings, SEM photos and detailed descriptions are provided for both the new species O. macritchie and the newly combined species O. alboannulata.

Keywords: Araneae, Pardosa, diversity, taxonomy, copulatory organs

 Taxonomy 

Family Lycosidae Sundevall, 1833 

Subfamily Lycosinae Sundevall, 1833 

Genus Ovia Sankaran, Malamel & Sebastian, 2017

 photo:  Joseph Koh   facebook.com/JosephKoh7161  

Ovia macritchie sp. nov. 

Etymology. The specific epithet is a noun in apposition and refers to the type locality, which is commonly known as the “MacRitchie Forest” within the species-rich Central Catchment Nature Reserve in Singapore. The name of this forest is becoming a catch-phrase epitomizing an evolving habit towards constructive engagement, in the spirt of mutual respect, among government agencies, the scientific community and civil society seeking to finetune a balance between safeguarding the shared natural heritage of all Singaporeans and meeting the infrastructure needs in land-scarce Singapore.

 Tian Lu, Joseph K. H. Koh, Zhi-Sheng Zhang and Shu-Qiang Li. 2018. A New Ovia Species (Araneae, Lycosidae) from Singapore, with the Transfer of Pardosa alboannulata Yin et al., 1997. Zootaxa. 4527(3); 436–450.  DOI: 10.11646/zootaxa.4527.3.12  

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[Herpetology • 2014] Cyrtodactylus thuongae • A Third New Cyrtodactylus (Squamata: Gekkonidae) from Ba Den Mountain, Tay Ninh Province, southern Vietnam

Cyrtodactylus thuongae

Phung, van Schingen, Ziegler & Nguyen, 2014

DOI: 10.11646/zootaxa.3764.3.5 

Abstract

We describe the third new species of the genus Cyrtodactylus from Ba Den Mountain, Tay Ninh Province, southern Vietnam based on a type series consisting of eleven specimens. Cyrtodactylus thuongae sp. nov. is distinguished from the remaining Indochinese Bent-toed Geckos by a combination of the following morphological characters: size medium, with a maximum SVL of 77.6 mm; dorsal pattern consisting of blotches between limbs and on occiput and a sometimes medially opened nuchal loop; dorsal tubercles in 16–18 irregular rows; ventrals in 29–44 longitudinal rows at midbody; lateral skin folds present, lacking tubercles; femoral pore series separated from precloacal pore series in males, 0–3 on each side; precloacal pores in males absent or only one; enlarged femoral scales and precloacal scales present, separated by a series of 15–16 smaller scales; postcloacal spurs two or three; subcaudal scales slightly enlarged. This is the 32nd described Cyrtodactylus species from Vietnam.

Keywords: Cyrtodactylus thuongae sp. nov., Tay Ninh Province, southern Vietnam, morphology, taxonomy

Cyrtodactylus thuongae sp. nov., adult male holotype (IEBR A.2013.23).

 Photo T.M. Phung. 

Cyrtodactylus thuongae sp. nov.

Etymology. The species name is dedicated to the wife of the first author, Dr. Thuong Thi Lien Nguyen from University of Food Industry, Ho Chi Minh City, Vietnam, for support of his field research in Vietnam

Cyrtodactylus thuongae sp. nov.:
A) adult male holotype (IEBR A.2013.23) and B) adult female paratype (ZFMK 94994) in life.

Photos T.M. Phung.

Sympatric occurrence of three Cyrtodactylus species in Ba Den Mountain,
A) Cyrtodactylus thuongae (IEBR A.2013.24), B) C. badenensis, and C) C. nigriocularis.

 Photos T.M. Phung.

Distribution. Cyrtodactylus thuongae is currently known only from the type locality in Tay Ninh Province, Vietnam (see Fig. 5). 

Natural history notes. Cyrtodactylus thuongae inhabits the same habitat with two other co-occurring cave dwelling species, C. badenensis Nguyen, Orlov & Darevsky, 2006 and C. nigriocularis Nguyen, Orlov & Darevsky, 2006 (Fig. 2). Specimens were collected at night (ca. 22–24:00) on the rocky wall in a small cave, approximately 0.5–2.5 m above the ground. Most of the specimens were found inside the cave (ca. 2–5 m from the entrance) and only one was collected outside (ca. 1.5 m away from the entrance). The surrounding habitat was mixed forest of hardwood and vine, dominated by trees of the families Moraceae, Fabaceae, and Dipterocarpaceae. C. badenensis and C. nigriocularis were also found on rocky cliffs of the cave, usually at heights below 1.5 m above the ground. 

Trung My Phung, Mona van Schingen, Thomas Ziegler and Truong Nguyen. 2014. A Third New Cyrtodactylus (Squamata: Gekkonidae) from Ba Den Mountain, Tay Ninh Province, southern Vietnam. Zootaxa. 3764 (3): 347–363. DOI: 10.11646/zootaxa.3764.3.5

ResearchGate.net/publication/261296560_A_third_new_Cyrtodactylus_from_Ba_Den_Mountain_Tay_Ninh_Province_southern_Vietnam

Vietnamese Gecko Species Discovered Near Ho Chi Minh City

thanhniennews.com/youth-science/new-lizard-frog-found-in-vietnams-mountains-25138.html

 reptilesmagazine.com/Lizards/Information-News/Vietnamese-Gecko-Species-Discovered-Near-Ho-Chi-Minh-City

[Paleontology • 2018] Volgatitan simbirskiensis • The Oldest Titanosaurian Sauropod of the Northern Hemisphere

Volgatitan simbirskiensis

Averianov & Efimov, 2018

 DOI:  10.21638/spbu03.2018.301 english.spbu.ru

"Titanosaur" by Olorotitan 

 andrey-atuchin.blogspot.com deviantart.com/olorotitan

ABSTRACT

Volgatitan simbirskiensis, gen. et sp. nov., is described based on a series of anterior and middle caudal vertebrae from a single individual discovered in the Lower Cretaceous (upper Hauterivian, Speetoniceras versicolor ammonite Zone) marine deposits at Slantsevy Rudnik vertebrate locality near Ulyanovsk City, Russia. The new taxon is characterized by strongly procoelous anterior and middle caudal vertebrae, a long centrum of the first caudal vertebra, a strong ventral ridge in the anterior and middle caudal vertebrae, a neural arch positioned at the anterior half of the centrum, hyposphene-hypantrum articulation in the anterior caudal vertebrae, and somphospondylous bone texture. Phylogenetic analysis places the new taxon as a lithostrotian titanosaur, a basal member of the lineage leading to the Lognkosauria. This lineage previously contained only South American taxa with body mass reaching 60–70 tons. Volgatitan gen. nov. is the first European and the geologically oldest representative of this lineage. Its body mass is estimated as 17.3 tons. Discovery of Volgatitan gen. nov. suggests that the lithostrotian lineage leading to the Lognkosauria had a wider distribution in the Early Cretaceous and became extinct everywhere except South America by the end of the Early Cretaceous.

KEYWORDS: Dinosauria, Sauropoda, Titanosauriformes, Titanosauria, Lithostrotia, Early Cretaceous, Eastern Europe, Russia

Volgatitan simbirskiensis anterior caudal vertebra (holotype),
in right lateral (A), anterior (B), left lateral (C), posterior (D), dorsal (E), and ventral (F) views. 

Alexander Averianov and Vladimir Efimov. 2018. The Oldest Titanosaurian Sauropod of the Northern Hemisphere. Biological Communications. 63(3), 145–162. DOI:  10.21638/spbu03.2018.301

Scientists from St Petersburg and Ulyanovsk have described a new giant dinosaur  english.spbu.ru/news/2482-scientists-from-st-petersburg-and-ulyanovsk-have-described-a-new-giant-dinosaur

 andrey-atuchin.blogspot.com/2011/05/russian-dinosaurs.html

"Titanosaur" by Olorotitan  deviantart.com/olorotitan/art/Titanosaur-211260962

    

[Botany • 2018] Centenaria rupacquiana • A New Genus of Compositae (Eupatorieae, Piqueriinae) from Peru, named Centenaria to honour the 100th Anniversary of the Natural History Museum of the National University Mayor of San Marcos

Centenaria rupacquiana

 P.Gonzáles, A.Cano & H.Rob.

in Gonzáles, Cano & Robinson, 2018. 

DOI: 10.3897/phytokeys.113.28242 

Abstract

A little herb from central Peru is recognised as a new species of a new genus. Centenaria rupacquiana belongs to the tribe Eupatorieae, subtribe Piqueriinae. It has asymmetrical corollas with two inner lobes smaller, a flat and epaleaceous receptacle and the presence of pappus. In Peru, Centenaria is related to the genera Ferreyrella and Ellenbergia, but Ferreyrella is different by having no pappus and a paleate receptacle; and on the other hand, Ellenbergia is different by having symmetrical corollas.

Keywords: Asteraceae, Ellenbergia, Eupatorieae, Ferreyrella, Rupac

Figure 1. Centenaria rupacquiana. A Plant B leaf (adaxial surface) C mature leaf (abaxial surface) D mature leaf (adaxial surface) E upper leaf F uppermost leaf bracteiform G capitula (upper view) H involucre I inner phyllaries J outer phyllaries K flower (frontal view) L flower (lateral view) M flower tube with glandular trichomes N flower (upper view) O style and stamens P, Q scale of pappus R achene without pappus. Photos by P. Gonzáles.

Centenaria P.Gonzáles, A.Cano & H.Rob., gen. nov.

Description: Small, erect, annual herbs, to 30 cm tall. Leaves opposite, blade ovate to broadly elliptical, coarsely to finely serrate. Inflorescence a diffuse corymbose cyme. Phyllaries 5, distant, biseriate, subequal to equal, persistent, oblong-elliptical to obovate-elliptical, with shortly apiculate apices; receptacle flat, foveolate, glabrous, epaleaceous. Florets 7–14; corollas asymmetrical with the two inner lobes smaller, white, with distinct short constricted basal tube bearing glandular or eglandular hairs; throat short and broad-campanulate; lobes as long as wide or outer lobes of peripheral florets longer, short-papillose on inner surface and margins; lower part of filament glabrous; anther collars rather short; style base not enlarged, glabrous; arms rather short-clavate, densely short-papillose; papillae larger and less dense below clavate tip. Achenes prismatic, 5-ribbed, ribs setuliferous, narrowed and setuliferous above carpopodium; carpopodium inconspicuously, short-cylindrical; pappus 5 long, lanceolate squamellae, densely scabrid on margins, nearly smooth on outer surface, smooth on inner surface.

Centenaria rupacquiana P.Gonzáles, A.Cano & H.Rob., sp. nov.

Diagnosis: A little herb characterised by its asymmetrical corollas with two small inner lobes, flat and epaleaceous receptacle and presence of pappus.

Type: Peru. Dept. Lima: prov. Huaral, Dist. Atavillos Bajo, NE of Pampas, road to Rupac, archaeological monument pre Inca, slopes with loamy clay soil, scrubland, ..., 3033–3509 m a.s.l., 15 Apr 2018, (fl,fr), A. Cano, P. Gonzáles, E. Huamán, S. Riva & S. Rivera 22682 (holotype: USM-3070016!, isotypes: MO!, MOL!, US-3730645!, USM!).

Distribution: Known only from the type locality in Rupac, northeast from Lima Department.

Ecology: Terrestrial plant growing on open area amongst shrubs, in the western Cordillera shrubland, between 3000–3500 m a.s.l. Co-occurring species include Paracalia jungioides (Hook. & Arn.) Cuatrec., Heliopsis buphthalmoides (Jacq.) Dunal, Dasyphyllum ferox (Wedd.) Cabrera and Vulpia megalura (Nutt.) Rydb. Flowering and fruiting between April and May.

Etymology: The genus is dedicated to the centennial of the institutional foundation of the Natural History Museum of National University Mayor of San Marcos (1918–2018), for their hard work on the research, conservation, preservation and diffusion of the biodiversity of the country. All these actions are steadily increasing our knowledge of the flora and fauna of our native land. The specific epithet refers to Rupac, a small village with archaeological remains from the Atavillos culture, where the only two populations of this species are known from this place.

 Paúl Gonzáles, Asunción Cano and Harold Robinson. 2018. A New Genus of Compositae (Eupatorieae, Piqueriinae) from Peru, named Centenaria to honour the 100th Anniversary of the Natural History Museum of the National University Mayor of San Marcos. PhytoKeys. 113: 69-77.  DOI: 10.3897/phytokeys.113.28242

Resumen: Una pequeña hierba del centro del Perú es reconocida como una especie nueva en un nuevo género. Centenaria rupacquiana es miembro de la tribu Eupatorieae subtribu Piqueriinae. Tiene corolas asimétricas con dos lóbulos internos más pequeños, receptáculo plano y sin palea, y presencia de papus. En Perú, Centenaria está relacionada a los géneros Ferreyrella y Ellenbergia, Pero Ferreyrella se diferencia por carecer de papus y presentar un receptáculo con paleas; por otro lado, Ellenbergia se diferencia por sus corolas simétricas.

[Botany • 2018] Taxonomic Notes on the Philippine Endemic Begonia colorata (Begoniaceae, section Petermannia)

Begonia colorata Warb.

in Naive, Alejandro & Hughes, 2018. 

DOI:  10.11646/phytotaxa.381.1.16  

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Abstract 

Recent exploration in Mt. Ararat, Bayugan City, Agusan del Sur resulted in a collection initially identified as Begonia bolsteri, a poorly known Philippine endemic species first described over a century ago. Examination of the types of this species and the type of B. colorata led us to the conclusion that these names represent the same taxon, and we place them in synonymy under the earlier name of B. colorata and designate lectotypes for both names. In this paper, we provide a comprehensive description for the species and photographs to facilitate easy identification. 

Keywords: Agusan del Sur, Mindanao, taxonomy, tropical botany, typification

FIGURE 1. Begonia colorata Warb. A, Habit; B, Detail of leaf; C, Staminate flower, scale bar 5 mm; D, Pistillate flower, scale bar 5 mm; E, Capsule, scale bar 1 cm.

Photos by MAK Naive.

Begonia colorata Warburg (1904: 51). 

Type:—PHILIPPINES. Mindanao, Sibulan, July 1888, Warburg 14633

 (lectotype B[B100238148!] designated here) Fig. 1. 

= Begonia bolsteri Merr. (1911: 387) syn. nov. Type:—PHILIPPINES. Mindanao, Province of Surigao, in damp shaded places, elev. 75 m, April 1906, Bolster 310 (lectotype B[100238109!], designated here; isolectotypes K[000761015!], PNH [112576-image!], US [00115258-image!]).

Distribution:— PHILIPPINES. Biliran, Mindanao, Luzon, Visayas (Pelser et al. 2011; Hughes et al. 2015–), Fig. 2. 

Ecology:— Growing in damp areas under a semi-open to closed canopy in primary and secondary forest at an elevation of 75–700 m asl.

Mark Arcebal K. Naive, Grecebio Jonathan D. Alejandro and Mark Hughes. 2018. Taxonomic Notes on the Philippine Endemic Begonia colorata (Begoniaceae, section Petermannia).  Phytotaxa. 381(1); 127–131. DOI:  10.11646/phytotaxa.381.1.16  

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